water Flashcards
is water polar or non polar ?
it is a polar molecule meaning it has an uneven distribution of charge
oxygen is more negative and than the hydrogens and the hydrogens are more positive
The joining of water molecules by weak hydrogen bonds are called cohesion
what does the polarity of the water allow the molecules to do?
it allows hydrogen bonds to form with other polar molecules
hydrogen bonds between water molecules is referred as cohesion
why is water being a metabolite useful
water is invloved in many reactions such as photosynthesis, hydrolysis and condensation
why is water being a solvent useful
because it dissolves substances and transports them . it is a solvent because it is a polar molecule
why is water having a high SHC useful
takes a lot of energy to raise temp
temp doesn’t fluctuate
temperature is stable for enzymes
how is water having a high SLH of vaporisation useful
lots of energy needed to change state
meaning water isn’t lost easily and it can act as a cooling affect
why does water being cohesive benifit organisms
water molecules stick together
meaning it’s an advantage for transpiration and water can flow up the xylem easily and create a transpiration stream
cohesion also provides high surface tension meaning organisms can live on the surface of water
